CN214754201U - Connecting structure between cable terminal and busbar - Google Patents
Connecting structure between cable terminal and busbar Download PDFInfo
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- CN214754201U CN214754201U CN202120755892.1U CN202120755892U CN214754201U CN 214754201 U CN214754201 U CN 214754201U CN 202120755892 U CN202120755892 U CN 202120755892U CN 214754201 U CN214754201 U CN 214754201U
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- busbar
- cable terminal
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Abstract
The utility model discloses a connecting structure between a cable terminal and a bus bar, which comprises at least one aluminum cable terminal, a copper bus bar, a copper-aluminum composite sheet and a connecting sheet; the aluminum cable terminal comprises an aluminum conductor and an aluminum terminal connected to one end of the aluminum conductor, an installation part used for installing the aluminum cable terminal is arranged on the copper busbar, the copper-aluminum composite sheet comprises an aluminum substrate and a copper layer which is arranged on the surface of the aluminum substrate and is in seamless connection with the aluminum substrate, one side, far away from the copper layer, of the aluminum substrate is connected with the aluminum terminal in a laminating manner, the connecting sheet is arranged between the installation part of the copper busbar and the copper-aluminum composite sheet, one side of the connecting sheet is laminated with the copper layer, and the other side of the connecting sheet is laminated with the copper busbar. The utility model realizes the transition connection between the copper end and the aluminum end by arranging the copper-aluminum composite sheet and the connecting sheet between the aluminum cable terminal and the copper busbar, and the performance is stable; and the copper layer in the copper-aluminum composite sheet structure is attached to the connecting sheet, and is not in direct contact with the copper busbar, so that the copper layer can be prevented from being damaged, and the service life of the copper-aluminum composite sheet is effectively prolonged.
Description
Technical Field
The utility model relates to an electrical connection technical field especially relates to a cable termination and female connection structure who arranges between.
Background
At present, a cable accessory terminal adopting an aluminum cable and an electrical equipment copper end are generally connected in a mode that a copper-aluminum transition terminal is crimped on the cable accessory terminal and then the copper-aluminum transition terminal is attached and fastened with an equipment copper bar end by a bolt. However, the copper-aluminum transition terminal is manufactured by friction welding a copper bar and an aluminum bar and then performing a series of stamping processing, so that the welding rejection rate is high, and the welding place of the copper-aluminum transition terminal is easy to break due to infirm welding; in addition, the contact area between the copper-aluminum transition terminal and the copper end of the equipment is insufficient in the using process, and meanwhile, the aluminum end is easy to directly contact the copper end of the equipment, so that accidents such as contact failure and large-area power failure are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cable termination and female connection structure who arranges between, aluminium end and copper end can not be because of damaging direct contact, and connection structure is reliable.
In order to achieve the above object, the utility model provides a cable termination and female connection structure who arranges between arranging, include:
at least one aluminum cable termination comprising an aluminum conductor and an aluminum terminal connected to one end of the aluminum conductor;
the copper busbar is provided with at least one mounting part for mounting the aluminum cable terminal;
the copper-aluminum composite sheet comprises an aluminum substrate and a copper layer which is arranged on the surface of the aluminum substrate and is in seamless connection with the aluminum substrate, and one surface of the aluminum substrate, which is far away from the copper layer, is in bonding connection with the aluminum terminal; and
the connecting piece, the connecting piece is located female installation department of arranging of copper with between the compound piece of copper aluminium, the one side of connecting piece with the laminating of copper layer, the another side of connecting piece with female the laminating of arranging of copper.
In a preferred embodiment, the mounting hole has been seted up to the installation department, the aluminium terminal copper aluminium composite piece with the through-hole that the connecting piece all seted up with the mounting hole corresponds passes through the fastener the mounting hole with the through-hole will the aluminium terminal copper aluminium composite piece the connecting piece with female zonulae occludens of copper.
In a preferred embodiment, the mounting hole and the through hole have a circular, fan, tile or semi-circular shape.
In a preferred embodiment, a copper-aluminum transition layer is formed between the aluminum substrate and the copper layer, wherein the copper-aluminum transition layer is formed by interpenetration or bonding of copper and aluminum atoms.
In a preferred embodiment, the total thickness of the copper layer and the copper-aluminum transition layer is less than 1 mm.
In a preferred embodiment, the connecting piece is made of copper material.
In a preferred embodiment, the size of the connecting piece is larger than that of the copper-aluminum composite sheet.
In a preferred embodiment, the aluminum terminal includes a connection pipe section and a flat plate section connected to one end of the connection pipe section, the connection pipe section is used for connecting the aluminum conductor, and the flat plate section is used for connecting the copper busbar.
In a preferred embodiment, the connecting pipe section and the aluminum conductor are tightly connected by crimping.
In a preferred embodiment, the connecting tube section has a cylindrical or annular open structure.
The beneficial effects of the utility model reside in that: the copper-aluminum composite sheet and the connecting sheet are arranged between the aluminum cable terminal and the copper busbar, so that transition connection between the copper end and the aluminum end is realized, direct contact between the aluminum conductor end and the copper end of the equipment is completely avoided, and the performance is stable; and the copper layer in the copper-aluminum composite sheet structure is attached to the connecting sheet, and is not in direct contact with the copper busbar, so that the copper layer can be prevented from being damaged, and the service life of the copper-aluminum composite sheet is effectively prolonged.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front view of a connection structure between a cable terminal and a busbar according to an embodiment of the present invention;
fig. 2 is a sectional view of a connection structure between the cable terminal and the busbar shown in fig. 1.
The reference numbers illustrate:
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.
Referring to fig. 1 and 2, an embodiment of the present invention provides a connection structure between a cable terminal and a busbar, including at least one aluminum cable terminal 10, a copper busbar 20, a copper-aluminum composite sheet 30, and a connection sheet 40. The aluminum cable terminal 10 includes an aluminum conductor 11 and an aluminum terminal 12 connected to one end of the aluminum conductor 11. The copper busbar 20 is provided with at least one mounting part 21 for mounting the aluminum cable terminal 10. The copper-aluminum composite sheet 30 comprises an aluminum substrate 31 and a copper layer 32, wherein the copper layer 32 is arranged on the surface of the aluminum substrate 31 and is connected with the aluminum substrate 31 in a seamless mode, and one surface, away from the copper layer 32, of the aluminum substrate 31 is attached to and connected with the aluminum terminal 12. The connecting piece 40 is located the female installation department 21 of arranging 20 of copper with between the compound piece 30 of copper aluminium, the one side of connecting piece 40 with the laminating of copper layer 32, the another side of connecting piece 40 with the female laminating of arranging 20 of copper.
Specifically, mounting hole 211 has been seted up to installation department 21, aluminium terminal 12 copper aluminium composite sheet 30 with connecting piece 40 all seted up with the through-hole that mounting hole 211 corresponds passes through the fastener mounting hole 211 with the through-hole will aluminium terminal 12 copper aluminium composite sheet 30 connecting piece 40 with the female 20 zonulae occludens of copper arranging. In this embodiment, the fastener may be a bolt.
In this embodiment, the shape of the mounting hole 211 and the through hole is circular, fan-shaped, tile-shaped or semicircular, which is not limited herein.
Specifically, a copper-aluminum transition layer is formed between the aluminum substrate 31 and the copper layer 32, the copper-aluminum transition layer is formed by mutually permeating or combining copper and aluminum atoms, and the aluminum substrate 31 and the copper layer 32 are tightly combined, are not easy to corrode, and have a good service life.
Preferably, the total thickness of the copper layer 32 and the copper-aluminum transition layer is smaller than 1mm, so that the copper-aluminum composite sheet 30 can meet the use requirements of mechanical property and electrical property, and as can be understood, the thickness of the aluminum substrate 31 is larger than that of the copper layer 32 and the copper-aluminum transition layer, the price of aluminum is lower, and cost saving is facilitated.
Because the copper layer 32 with the thickness of copper aluminium transition layer is thinner, is scratched easily, and connection piece 40 is located the copper bar 20 with between the copper aluminium composite sheet 30, when copper bar 20 surface has burr or dust, can effectively protect copper layer 32 not receive the damage in installation and use. In this embodiment, the connecting sheet 40 is made of copper material to connect the copper-aluminum composite sheet 30 and the copper busbar 20.
Further, the size of the connecting sheet 40 is larger than that of the copper-aluminum composite sheet 30, so that the surface of the copper-aluminum composite sheet 30 is completely covered, and the conductive contact surface is sufficient and is not easy to damage.
In this embodiment, the aluminum terminal 12 includes a connecting pipe segment 121 and a flat plate segment 122 connected to one end of the connecting pipe segment 121, where the connecting pipe segment 121 is used to connect the aluminum conductor 11, and the flat plate segment 122 is used to connect the copper busbar 20. Preferably, the connecting pipe segment 121 and the aluminum conductor 11 are tightly connected by crimping.
In this embodiment, the connecting pipe segment 121 is a cylindrical structure, and the aluminum conductor 11 extends into the connecting pipe segment 121 and then is subjected to crimping. In other embodiments, the connecting pipe segment 121 may also be an annular opening-shaped structure, and the aluminum conductor 11 is surrounded by the connecting pipe segment 121 and then subjected to a crimping process.
The utility model provides a cable termination and female connection structure between arranging through setting up copper aluminium composite sheet 30 and connection piece 40 between female 20 at aluminium cable termination 10 and copper bar, realizes the transitional coupling between copper end and the aluminium end, avoids the direct contact of conductor end and equipment end completely, the stable performance. And copper layer 32 in the structure of copper aluminium composite sheet 30 laminates with connection piece 40, does not have direct contact with copper bus bar 20, can avoid copper layer 32 to damage, effectively promotes copper aluminium composite sheet 30's life.
The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a connection structure between cable termination and female arranging which characterized in that includes:
at least one aluminum cable termination comprising an aluminum conductor and an aluminum terminal connected to one end of the aluminum conductor;
the copper busbar is provided with at least one mounting part for mounting the aluminum cable terminal;
the copper-aluminum composite sheet comprises an aluminum substrate and a copper layer which is arranged on the surface of the aluminum substrate and is in seamless connection with the aluminum substrate, and one surface of the aluminum substrate, which is far away from the copper layer, is in bonding connection with the aluminum terminal; and
the connecting piece, the connecting piece is located female installation department of arranging of copper with between the compound piece of copper aluminium, the one side of connecting piece with the laminating of copper layer, the another side of connecting piece with female the laminating of arranging of copper.
2. The connecting structure between the cable terminal and the busbar according to claim 1, wherein the mounting portion is provided with a mounting hole, the aluminum terminal, the copper-aluminum composite sheet and the connecting sheet are provided with through holes corresponding to the mounting hole, and a fastener is passed through the mounting hole and the through holes to tightly connect the aluminum terminal, the copper-aluminum composite sheet, the connecting sheet and the copper busbar.
3. The connection structure between the cable terminal and the busbar according to claim 2, wherein the mounting hole and the through hole have a circular, fan-shaped, tile-shaped, or semicircular shape.
4. The connecting structure between the cable terminal and the busbar according to claim 1, wherein a copper-aluminum transition layer is formed between the aluminum substrate and the copper layer, and the copper-aluminum transition layer is formed by interpenetration or bonding of copper and aluminum atoms.
5. The connection structure between the cable terminal and the busbar according to claim 4, wherein the total thickness of the copper layer and the copper-aluminum transition layer is less than 1 mm.
6. The connection structure between the cable terminal and the busbar according to claim 1, wherein the connecting piece is made of copper material.
7. The connecting structure between the cable terminal and the busbar according to claim 1, wherein the connecting sheet is larger than the copper-aluminum composite sheet.
8. The structure of claim 1, wherein the aluminum terminal comprises a connecting pipe section and a flat plate section connected to one end of the connecting pipe section, the connecting pipe section is used for connecting the aluminum conductor, and the flat plate section is used for connecting the copper busbar.
9. The connection structure between the cable terminal and the busbar according to claim 8, wherein the connecting tube section is tightly connected to the aluminum conductor by crimping.
10. The structure of claim 8, wherein the connecting tube section is a cylindrical structure or an annular open structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755892.1U CN214754201U (en) | 2021-04-13 | 2021-04-13 | Connecting structure between cable terminal and busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120755892.1U CN214754201U (en) | 2021-04-13 | 2021-04-13 | Connecting structure between cable terminal and busbar |
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| Publication Number | Publication Date |
|---|---|
| CN214754201U true CN214754201U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120755892.1U Active CN214754201U (en) | 2021-04-13 | 2021-04-13 | Connecting structure between cable terminal and busbar |
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| CN (1) | CN214754201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337532A (en) * | 2021-12-27 | 2022-04-12 | 阳光新能源开发股份有限公司 | Photovoltaic system and photovoltaic module junction box |
-
2021
- 2021-04-13 CN CN202120755892.1U patent/CN214754201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337532A (en) * | 2021-12-27 | 2022-04-12 | 阳光新能源开发股份有限公司 | Photovoltaic system and photovoltaic module junction box |
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